FX5545G105 Vishay Industry Smallest and Low Profile 6.5W 2.0A DC/DC Buck Converter with High Output Power Density FEATURES • • • • • • • • • • • • Fully integrated DC/DC converter High efficiency over large load range 100% duty cycle Power density - more than 240W/inch3 1µA shutdown current 2.7V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells) 1.35V to 4.5V* output voltage Programmable PWM/PSM controls Low output ripple BGA/LGA construction Temperature range: - 40°C to + 85°C No external components needed • Output power 6.5W • Maximum current 2.0A • Low profile * Note: For higher output voltage please consult factory at [email protected] The DC/DC converter is a programmable topology synchronized Buck converter for today’s continuous changing portable electronic market. The DC/DC converter provides flexibility of utilizing various battery configurations and chemistries such as NiCd, NiMH, or Li+ with an input voltage range of 2.7V to 6V. An additional flexibility is provided with topology programmability to power multiple loads such as power amplifiers, microcontrollers, or baseband logic IC’s. For ultra-high efficiency, converters are designed to operate in synchronous rectified PWM mode under full load while transforming into externally controlled pulse-skipping mode (PSM) under light load. The DC/DC converter is available in 20-ports BGA package. In order to satisfy the stringent ambient temperature requirements, the DC/DC converter is designed to handle the industrial temperature range of - 40°C to + 85°C. APPLICATION • Point of Load (POL) applications such as drivers for FPGA’s, microprocessors, DSP’s amplifiers, etc. • Cordless phones, PDAs and others • Supply voltage source for low-voltage chip sets • Portable computers • Battery back-up supplies • Cameras • Routers • Fiber optics • LANS • Image processing ORDERING INFORMATION FX 5545 G105 FUNCTION SIZE CIRCUIT IDENTIFIER OUTPUT VOLTAGE - Example: 2.7V should be written as 2V7 as the V indicates the decimal point, or ADJ for adjustable version - self selectable output voltage. PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13” reel; T2 = 7” reel. For lead (Pb)-free solder please add E2 suffix. Document Number: 10114 Revision: 21-Jan-05 For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 27 FX5545G105 Vishay W 0.48 ± 0.01 [12.2 ± 0.25] A 0.1 ± 0.01 [2.54 ± 0.25] B 0.09 ± 0.01 [2.29 ± 0.25] C 0.09 ± 0.01 [2.27 ± 0.25] T 0.12 max [3 max] Ball Diameter 0.03 ± 0.001 [0.762 ± 0.025] W A 0.58 ± 0.01 [14.7 ± 0.25] L L B DIMENSIONS in inches [millimeters] BOTTOM SIDE C T A PIN CONFIGURATION* PIN 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Marked on Upper Side CONNECTION 1, 2 SD 3, 7 SYNC** 4, 8 N/C 5, 9 Vin 6, 10 PWM/PSM 11, 12 N/C *Note: Pin Description application note is available at www.vishay.com/doc?10119 13, 17 GND 14, 18 Vout **Note: if not used must be connected to Vin. 15, 19 N/C 16, 20 GND A D F A RECOMMENDED PAD PATTERN in inches [millimeters] D F 0.1 ± 0.01 [2.54 ± 0.25] 0.03 ± 0.001 [0.8 ± 0.02] 0.02 ± 0.001 [0.5 ± 0.02] A TAPE AND REEL See Tape and Reel Information - Type B www.vishay.com 28 For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10114 Revision: 21-Jan-05 FX5545G105 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER UNIT Input Voltage Range Quiescent Current Soft Start Time SD, PWM/PSM,SYNC Logic High Logic Low Normal Mode PSM Mode Shutdown Mode Shutdown Time Insulation Test Voltage Resistance Leakage Current Output Power Voltage Voltage Tolerance Temp. Coefficient Ripple and Noise CONDITION VDC PSM mode TSS ms V V 2.4 ms VAC Ω nA 60Hz 60sec VISO = 500 VDC VISO = 500 VDC 750 1 x 1011 µA µA µA MAX 6 200 3.3 VH VL IDD IDD IDD TSS W VDC % %/°C mVpp mVpp TYP 2.7 µA General Package Weight Oscillator Frequency SYNC Range Temperature Operation Storage Operating Junction Temp. Thermal Impedance MIN 0.8 750 250 1 4 5 6.5 1.35 to 4.5 at 25 °C Ambient Temperature -3 DC to 20 MHz With 10µF capacitor +3 0.03 130 90 gr. 1.4 KHz 400 FSYNC/FOSC °C °C 1.2 1.5 - 40 - 55 + 85 + 125 °C Tj 150 °C/WD* θJA 82 *Note: WD = Power Dissipated Rise Time Fall Time Rise Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 2A Fall Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 2A Document Number: 10114 Revision: 21-Jan-05 For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 29 FX5545G105 Vishay PWM MODE Vout Vs. lout* Vout Vs. Vin* 2.6 2.6 2.55 2.55 2.5 2.5 Vout (V) Vout (V) Vin = 3.6V; Vout = 2.5V 2.45 2.4 Iout = 2A 2.45 2.4 2.35 2.35 2.3 0 0.5 1 1.5 2 2.3 2.5 2 0 4 6 8 lout (A) Vin (V) ∆ Temp. Vs. lout* Efficiency Vs. lout* Above 25°C Ambient Temperature: For Vin = 6V Vin = 3.6V; Vin = 2.5V 40 35 Efficiency (%) 30 D Temp (°C) Iout = 0.5A Iout = 1A 25 20 15 10 5 0 100 95 90 85 80 75 70 65 60 55 50 0 0.5 1 1.5 2 0 2.5 0.5 1 1.5 2 2.5 0.2 0.25 lout (A) lout (A) Vout Vs. Vin* Vout Vs. lout* lout = 0.1A Vin = 6V 3.4 3.38 3.36 3.34 3.32 3.3 3.28 3.26 3.24 3.22 3.2 Vout (V) Vout (V) PSM MODE 3 4 5 6 7 3.4 3.38 3.36 3.34 3.32 3.3 3.28 3.26 3.24 3.22 3.2 0 0.05 0.1 0.15 Iout (A) Vin (V) Efficiency Vs. lout* Efficiency (%) 100 90 80 70 60 50 40 30 20 10 0 Vin = 4V Vin = 6V 0 0.05 0.1 0.15 0.2 0.25 Iout (A) *Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter: Fluke 45 from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent. www.vishay.com 30 For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10114 Revision: 21-Jan-05